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ICE EFFECTS ON STREAMFLOW During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.

USGS 011055566 NEPONSET RIVER AT MILTON VILLAGE, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Lat 42o16’15", long 71o04’08", Norfolk County, Hydrologic Unit 01090001, on right bank, 75 ft downstream from Baker Dam and 100 ft upstream from Adams Street at Milton Village. From March 14, 2007 to December 10, 2009, at site 20 ft upstream from Baker Dam.
DRAINAGE AREA.--101 mi2.
PERIOD OF RECORD.--November 1996 to current year.
GAGE.--Data Collection Platform with satellite telemeter. Datum of gage is set to National Geodetic Vertical Datum of 1929. From March 14, 2007 to December 10, 2009, gage was located 20 ft upstream from Baker Dam and set to National Geodetic Vertical Datum of 1929. From November 1996 to March 2007, gage was located 100 ft downstream of Baker Dam at arbitrary datum.
REMARKS.--Flow regulated by mills and reservoirs upstream. Flow affected by diversion from Charles River basin to Neponset River basin by Mother Brook (station 01104000) through Dedham and Hyde Park and by diversions to and from basin for municipal supplies.
On March 14, 2007 the stage sensor was relocated from below Baker Dam to the upstream side of Baker Dam where there is no tidal influence on the stage record. Due to the difficulties in maintaining a stage-discharge rating above Baker Dam, it was decided to relocate the stage sensor in the original gage pool below Baker Dam. The gage was relocated to the original location below Baker Dam on December 10, 2009. The datum for the current location is National Geodetic Vertical Datum of 1929. Tidal spikes will again be visible in the stage record. Falsely high discharges during tidal rises will continue to be removed prior to computation of discharge record. Stage record is affected by high tides is not adjusted.
COOPERATION BY.--Massachusetts Department of Conservation and Recreation, Office of Water Resources.

 

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This station managed by the Northborough MA Field Office.

Available Parameters Available Period
All 2 Available Parameters for this site
  
00060 Discharge 1996-11-15  2017-09-23
00065 Gage height 2007-10-01  2017-09-23

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Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 297 09-23-2017   13:45 EDT
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Daily discharge, cubic feet per second -- statistics for Sep 23 based on 20 years of record more
Min
(2016)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Sep 23
Max
(1999)
11.6 32 73 95 137 297 406


Gage height, feet

Most recent instantaneous value: 2.20 09-23-2017   13:45 EDT
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